Calculate the pH of the cathode compartment for the following reaction given Ecell 3.01 V when Cr*+ = 0.12 M, %3D A3+ = 0.32 M, and Cr2O,2- = 0.54 M. 2A1(s) + Cr20,?- (ag) + 14H* (ag) → 2AI** (aq) + 2Cr** (ag) + 7H2O(1) You may need to use the following data: Cr20,2- + 14H+ + 6e + 2Cr+ + 7H2O E =1.33 V Al+ + 3e + Al E = -1.66 V

Calculate the pH of the cathode compartment for the following reaction given Ecell 3.01 V when Cr+ = 0.12 M, %3D A3+ = 0.32 M, and Cr2O,2- = 0.54 M. 2A1(s) + Cr20,?- (ag) + 14H (ag) → 2AI (aq) + 2Cr (ag) + 7H2O(1) You may need to use the following data: Cr20,2- + 14H+ + 6e + 2Cr+ + 7H2O E =1.33 V Al+ + 3e + Al E = -1.66 V

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter22: Bulk Electrolysis: Electrogravimetry And Coulometry

Section: Chapter Questions

Problem 22.28QAP

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